<!-- 1. 基础多行二级栏目 - 适合内容分类清晰的导航场景 -->
<div class="nav-section basic-navigation">
    <!-- 主分类 -->
    <div class="main-categories">
        <div class="main-category active">首页</div>
        <div class="main-category">发现</div>
        <div class="main-category">关注</div>
        <div class="main-category">话题</div>
        <div class="main-category">活动</div>
        <div class="main-category">消息</div>
        <div class="main-category">个人中心</div>
    </div>

    <!-- 二级分类 - 首页 -->
    <div class="subcategories">
        <a href="#" class="subcategory active">推荐内容</a>
        <a href="#" class="subcategory">热门动态</a>
        <a href="#" class="subcategory">最新发布</a>
        <a href="#" class="subcategory">关注更新</a>
        <a href="#" class="subcategory">附近动态</a>
        <a href="#" class="subcategory">精选专题</a>
        <a href="#" class="subcategory">官方公告</a>
    </div>
</div>
